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Xenopus Eleutheroembryonic Thyroid Assay (XETA)

Guideline OECD No. 248  Download
XETA test validated by OECD – TG 248
Tests are performed on whole organisms (Xenopus eggs), exposed in vitro for 48h or 72h.

Alternative method replacing animal testing. Performed at an early eleuthero-embryonic stage.
Assay protocols adapted to your needs: regulatory, R&D, manufactured products portofolio screening, etc.

From scientific data to more pedagogic results

Thyroid test for regulatory purposes

The OECD classifies endocrine disruption according to 5 levels described in Guidance Document 150. The higher the level is, the stronger the weight of evidence.

Guidance Document 150 on Standardised Test Guidelines for Evaluating Chemicals for Endocrine Disruption

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